Performance evaluation of PACT Pilot-plant for CO2 capture from gas turbines with Exhaust Gas Recycle.

Exhaust Gas Recycle (EGR) is one of the technologies used to increase the CO 2 concentration in the gas turbine flue gas. This paper presents the results of an experimental campaign carried out at the Pilot-scale Advanced Capture Technology (PACT) facilities at the UK Carbon Capture and Storage Research Centre (UKCCSRC). A 100 kW e Turbec T100 PH microturbine was integrated with a post combustion CO 2 capture plant that has a CO 2 capture capacity of one ton per day. The impact of different CO 2 concentrations (representing a range of EGR ratios) on the post-combustion CO 2 capture process was experimentally evaluated using 30% (wt.%) Monoethanolamine (MEA) solvent. It was observed that the specific reboiler duty was reduced by around 7.1% per unit percentage increase in CO 2 concentration. Overall, it was seen that the higher the CO 2 concentration, the lower the specific reboiler duty at a fixed capture rate. Both rich and lean solvent loadings increased with increase in flue gas CO 2 concentration. Energy balance on the stripper has shown that steam generation rate and condenser duty increases with increase in CO 2 concentration. The experimental data was used to develop and validate the model for the Pilot-scale amine capture plant using Aspen HYSYS. [ABSTRACT FROM AUTHOR]